1 /*****************************************************************************
2 * rtp.c: rtp stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
5 * Copyright © 2007 Rémi Denis-Courmont
8 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
35 #include <vlc_block.h>
37 #include <vlc_httpd.h>
39 #include <vlc_network.h>
40 #include <vlc_charset.h>
41 #include <vlc_strings.h>
46 # include <sys/types.h>
49 # include <sys/stat.h>
51 #ifdef HAVE_LINUX_DCCP_H
52 # include <linux/dccp.h>
55 # define IPPROTO_DCCP 33
57 #ifndef IPPROTO_UDPLITE
58 # define IPPROTO_UDPLITE 136
63 /*****************************************************************************
65 *****************************************************************************/
67 #define DEST_TEXT N_("Destination")
68 #define DEST_LONGTEXT N_( \
69 "This is the output URL that will be used." )
70 #define SDP_TEXT N_("SDP")
71 #define SDP_LONGTEXT N_( \
72 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
73 "session will be made available. You must use an url: http://location to " \
74 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
75 "for the SDP to be announced via SAP." )
76 #define SAP_TEXT N_("SAP announcing")
77 #define SAP_LONGTEXT N_("Announce this session with SAP.")
78 #define MUX_TEXT N_("Muxer")
79 #define MUX_LONGTEXT N_( \
80 "This allows you to specify the muxer used for the streaming output. " \
81 "Default is to use no muxer (standard RTP stream)." )
83 #define NAME_TEXT N_("Session name")
84 #define NAME_LONGTEXT N_( \
85 "This is the name of the session that will be announced in the SDP " \
86 "(Session Descriptor)." )
87 #define DESC_TEXT N_("Session description")
88 #define DESC_LONGTEXT N_( \
89 "This allows you to give a short description with details about the stream, " \
90 "that will be announced in the SDP (Session Descriptor)." )
91 #define URL_TEXT N_("Session URL")
92 #define URL_LONGTEXT N_( \
93 "This allows you to give an URL with more details about the stream " \
94 "(often the website of the streaming organization), that will " \
95 "be announced in the SDP (Session Descriptor)." )
96 #define EMAIL_TEXT N_("Session email")
97 #define EMAIL_LONGTEXT N_( \
98 "This allows you to give a contact mail address for the stream, that will " \
99 "be announced in the SDP (Session Descriptor)." )
100 #define PHONE_TEXT N_("Session phone number")
101 #define PHONE_LONGTEXT N_( \
102 "This allows you to give a contact telephone number for the stream, that will " \
103 "be announced in the SDP (Session Descriptor)." )
105 #define PORT_TEXT N_("Port")
106 #define PORT_LONGTEXT N_( \
107 "This allows you to specify the base port for the RTP streaming." )
108 #define PORT_AUDIO_TEXT N_("Audio port")
109 #define PORT_AUDIO_LONGTEXT N_( \
110 "This allows you to specify the default audio port for the RTP streaming." )
111 #define PORT_VIDEO_TEXT N_("Video port")
112 #define PORT_VIDEO_LONGTEXT N_( \
113 "This allows you to specify the default video port for the RTP streaming." )
115 #define TTL_TEXT N_("Hop limit (TTL)")
116 #define TTL_LONGTEXT N_( \
117 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
118 "the multicast packets sent by the stream output (0 = use operating " \
119 "system built-in default).")
121 #define RTCP_MUX_TEXT N_("RTP/RTCP multiplexing")
122 #define RTCP_MUX_LONGTEXT N_( \
123 "This sends and receives RTCP packet multiplexed over the same port " \
126 #define PROTO_TEXT N_("Transport protocol")
127 #define PROTO_LONGTEXT N_( \
128 "This selects which transport protocol to use for RTP." )
130 static const char *const ppsz_protos[] = {
131 "dccp", "sctp", "tcp", "udp", "udplite",
134 static const char *const ppsz_protocols[] = {
135 "DCCP", "SCTP", "TCP", "UDP", "UDP-Lite",
138 #define RFC3016_TEXT N_("MP4A LATM")
139 #define RFC3016_LONGTEXT N_( \
140 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
142 static int Open ( vlc_object_t * );
143 static void Close( vlc_object_t * );
145 #define SOUT_CFG_PREFIX "sout-rtp-"
146 #define MAX_EMPTY_BLOCKS 200
149 set_shortname( _("RTP"));
150 set_description( _("RTP stream output") );
151 set_capability( "sout stream", 0 );
152 add_shortcut( "rtp" );
153 set_category( CAT_SOUT );
154 set_subcategory( SUBCAT_SOUT_STREAM );
156 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DEST_TEXT,
157 DEST_LONGTEXT, true );
159 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
160 SDP_LONGTEXT, true );
161 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
162 MUX_LONGTEXT, true );
163 add_bool( SOUT_CFG_PREFIX "sap", false, NULL, SAP_TEXT, SAP_LONGTEXT,
166 add_string( SOUT_CFG_PREFIX "name", "", NULL, NAME_TEXT,
167 NAME_LONGTEXT, true );
168 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
169 DESC_LONGTEXT, true );
170 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
171 URL_LONGTEXT, true );
172 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
173 EMAIL_LONGTEXT, true );
174 add_string( SOUT_CFG_PREFIX "phone", "", NULL, PHONE_TEXT,
175 PHONE_LONGTEXT, true );
177 add_string( SOUT_CFG_PREFIX "proto", "udp", NULL, PROTO_TEXT,
178 PROTO_LONGTEXT, false );
179 change_string_list( ppsz_protos, ppsz_protocols, NULL );
180 add_integer( SOUT_CFG_PREFIX "port", 50004, NULL, PORT_TEXT,
181 PORT_LONGTEXT, true );
182 add_integer( SOUT_CFG_PREFIX "port-audio", 50000, NULL, PORT_AUDIO_TEXT,
183 PORT_AUDIO_LONGTEXT, true );
184 add_integer( SOUT_CFG_PREFIX "port-video", 50002, NULL, PORT_VIDEO_TEXT,
185 PORT_VIDEO_LONGTEXT, true );
187 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
188 TTL_LONGTEXT, true );
189 add_bool( SOUT_CFG_PREFIX "rtcp-mux", false, NULL,
190 RTCP_MUX_TEXT, RTCP_MUX_LONGTEXT, false );
192 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
193 RFC3016_LONGTEXT, false );
195 set_callbacks( Open, Close );
198 /*****************************************************************************
199 * Exported prototypes
200 *****************************************************************************/
201 static const char *ppsz_sout_options[] = {
202 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
203 "sap", "description", "url", "email", "phone",
208 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
209 static int Del ( sout_stream_t *, sout_stream_id_t * );
210 static int Send( sout_stream_t *, sout_stream_id_t *,
212 static sout_stream_id_t *MuxAdd ( sout_stream_t *, es_format_t * );
213 static int MuxDel ( sout_stream_t *, sout_stream_id_t * );
214 static int MuxSend( sout_stream_t *, sout_stream_id_t *,
217 static sout_access_out_t *GrabberCreate( sout_stream_t *p_sout );
218 static void ThreadSend( vlc_object_t *p_this );
220 static void SDPHandleUrl( sout_stream_t *, char * );
222 static int SapSetup( sout_stream_t *p_stream );
223 static int FileSetup( sout_stream_t *p_stream );
224 static int HttpSetup( sout_stream_t *p_stream, const vlc_url_t * );
226 struct sout_stream_sys_t
230 vlc_mutex_t lock_sdp;
233 bool b_export_sdp_file;
238 session_descriptor_t *p_session;
241 httpd_host_t *p_httpd_host;
242 httpd_file_t *p_httpd_file;
248 char *psz_destination;
252 uint16_t i_port_audio;
253 uint16_t i_port_video;
257 /* when need to use a private one or when using muxer */
260 /* in case we do TS/PS over rtp */
262 sout_access_out_t *p_grab;
268 sout_stream_id_t **es;
271 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
274 typedef struct rtp_sink_t
280 struct sout_stream_id_t
284 sout_stream_t *p_stream;
287 uint8_t i_payload_type;
299 /* Packetizer specific fields */
300 pf_rtp_packetizer_t pf_packetize;
304 vlc_mutex_t lock_sink;
307 rtsp_stream_id_t *rtsp_id;
310 block_fifo_t *p_fifo;
314 /*****************************************************************************
316 *****************************************************************************/
317 static int Open( vlc_object_t *p_this )
319 sout_stream_t *p_stream = (sout_stream_t*)p_this;
320 sout_instance_t *p_sout = p_stream->p_sout;
321 sout_stream_sys_t *p_sys = NULL;
322 config_chain_t *p_cfg = NULL;
326 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
327 ppsz_sout_options, p_stream->p_cfg );
329 p_sys = malloc( sizeof( sout_stream_sys_t ) );
333 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
335 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
336 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
337 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
338 p_sys->rtcp_mux = var_GetBool( p_stream, SOUT_CFG_PREFIX "rtcp-mux" );
340 p_sys->psz_sdp_file = NULL;
342 if( p_sys->i_port_audio == p_sys->i_port_video )
344 msg_Err( p_stream, "audio and video port cannot be the same" );
345 p_sys->i_port_audio = 0;
346 p_sys->i_port_video = 0;
349 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
351 if( !strcmp( p_cfg->psz_name, "sdp" )
352 && ( p_cfg->psz_value != NULL )
353 && !strncasecmp( p_cfg->psz_value, "rtsp:", 5 ) )
361 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
364 if( !strncasecmp( psz, "rtsp:", 5 ) )
370 /* Transport protocol */
371 p_sys->proto = IPPROTO_UDP;
372 psz = var_GetNonEmptyString (p_stream, SOUT_CFG_PREFIX"proto");
374 if ((psz == NULL) || !strcasecmp (psz, "udp"))
375 (void)0; /* default */
377 if (!strcasecmp (psz, "dccp"))
379 p_sys->proto = IPPROTO_DCCP;
380 p_sys->rtcp_mux = true; /* Force RTP/RTCP mux */
384 if (!strcasecmp (psz, "sctp"))
386 p_sys->proto = IPPROTO_TCP;
387 p_sys->rtcp_mux = true; /* Force RTP/RTCP mux */
392 if (!strcasecmp (psz, "tcp"))
394 p_sys->proto = IPPROTO_TCP;
395 p_sys->rtcp_mux = true; /* Force RTP/RTCP mux */
399 if (!strcasecmp (psz, "udplite") || !strcasecmp (psz, "udp-lite"))
400 p_sys->proto = IPPROTO_UDPLITE;
402 msg_Warn (p_this, "unknown or unsupported transport protocol \"%s\"",
405 var_Create (p_this, "dccp-service", VLC_VAR_STRING);
407 if( ( p_sys->psz_destination == NULL ) && !b_rtsp )
409 msg_Err( p_stream, "missing destination and not in RTSP mode" );
414 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
415 if( p_sys->i_ttl == 0 )
417 /* Normally, we should let the default hop limit up to the core,
418 * but we have to know it to build our SDP properly, which is why
419 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
421 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
424 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
426 p_sys->i_payload_type = 96;
430 p_sys->psz_sdp = NULL;
432 p_sys->b_export_sap = false;
433 p_sys->b_export_sdp_file = false;
434 p_sys->p_session = NULL;
436 p_sys->p_httpd_host = NULL;
437 p_sys->p_httpd_file = NULL;
439 p_stream->p_sys = p_sys;
441 vlc_mutex_init( &p_sys->lock_sdp );
442 vlc_mutex_init( &p_sys->lock_es );
444 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
447 sout_stream_id_t *id;
449 /* Check muxer type */
450 if( strncasecmp( psz, "ps", 2 )
451 && strncasecmp( psz, "mpeg1", 5 )
452 && strncasecmp( psz, "ts", 2 ) )
454 msg_Err( p_stream, "unsupported muxer type for RTP (only TS/PS)" );
456 vlc_mutex_destroy( &p_sys->lock_sdp );
457 vlc_mutex_destroy( &p_sys->lock_es );
462 p_sys->p_grab = GrabberCreate( p_stream );
463 p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab );
466 if( p_sys->p_mux == NULL )
468 msg_Err( p_stream, "cannot create muxer" );
469 sout_AccessOutDelete( p_sys->p_grab );
470 vlc_mutex_destroy( &p_sys->lock_sdp );
471 vlc_mutex_destroy( &p_sys->lock_es );
476 id = Add( p_stream, NULL );
479 sout_MuxDelete( p_sys->p_mux );
480 sout_AccessOutDelete( p_sys->p_grab );
481 vlc_mutex_destroy( &p_sys->lock_sdp );
482 vlc_mutex_destroy( &p_sys->lock_es );
487 p_sys->packet = NULL;
489 p_stream->pf_add = MuxAdd;
490 p_stream->pf_del = MuxDel;
491 p_stream->pf_send = MuxSend;
496 p_sys->p_grab = NULL;
498 p_stream->pf_add = Add;
499 p_stream->pf_del = Del;
500 p_stream->pf_send = Send;
503 if( var_GetBool( p_stream, SOUT_CFG_PREFIX"sap" ) )
504 SDPHandleUrl( p_stream, "sap" );
506 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
509 config_chain_t *p_cfg;
511 SDPHandleUrl( p_stream, psz );
513 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
515 if( !strcmp( p_cfg->psz_name, "sdp" ) )
517 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
520 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
521 if( !strcmp( p_cfg->psz_value, psz ) )
524 SDPHandleUrl( p_stream, p_cfg->psz_value );
530 /* update p_sout->i_out_pace_nocontrol */
531 p_stream->p_sout->i_out_pace_nocontrol++;
536 /*****************************************************************************
538 *****************************************************************************/
539 static void Close( vlc_object_t * p_this )
541 sout_stream_t *p_stream = (sout_stream_t*)p_this;
542 sout_stream_sys_t *p_sys = p_stream->p_sys;
544 /* update p_sout->i_out_pace_nocontrol */
545 p_stream->p_sout->i_out_pace_nocontrol--;
549 assert( p_sys->i_es == 1 );
550 Del( p_stream, p_sys->es[0] );
552 sout_MuxDelete( p_sys->p_mux );
553 sout_AccessOutDelete( p_sys->p_grab );
556 block_Release( p_sys->packet );
558 if( p_sys->b_export_sap )
561 SapSetup( p_stream );
565 if( p_sys->rtsp != NULL )
566 RtspUnsetup( p_sys->rtsp );
568 vlc_mutex_destroy( &p_sys->lock_sdp );
569 vlc_mutex_destroy( &p_sys->lock_es );
571 if( p_sys->p_httpd_file )
572 httpd_FileDelete( p_sys->p_httpd_file );
574 if( p_sys->p_httpd_host )
575 httpd_HostDelete( p_sys->p_httpd_host );
577 free( p_sys->psz_sdp );
579 if( p_sys->b_export_sdp_file )
582 unlink( p_sys->psz_sdp_file );
584 free( p_sys->psz_sdp_file );
586 free( p_sys->psz_destination );
590 /*****************************************************************************
592 *****************************************************************************/
593 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
595 sout_stream_sys_t *p_sys = p_stream->p_sys;
598 vlc_UrlParse( &url, psz_url, 0 );
599 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
601 if( p_sys->p_httpd_file )
603 msg_Err( p_stream, "you can use sdp=http:// only once" );
607 if( HttpSetup( p_stream, &url ) )
609 msg_Err( p_stream, "cannot export SDP as HTTP" );
612 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
614 if( p_sys->rtsp != NULL )
616 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
620 /* FIXME test if destination is multicast or no destination at all */
621 p_sys->rtsp = RtspSetup( p_stream, &url );
622 if( p_sys->rtsp == NULL )
624 msg_Err( p_stream, "cannot export SDP as RTSP" );
627 if( p_sys->p_mux != NULL )
629 sout_stream_id_t *id = p_sys->es[0];
630 id->rtsp_id = RtspAddId( p_sys->rtsp, id, 0, GetDWBE( id->ssrc ),
631 p_sys->psz_destination, p_sys->i_ttl,
632 id->i_port, id->i_port + 1 );
635 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
636 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
638 p_sys->b_export_sap = true;
639 SapSetup( p_stream );
641 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
643 if( p_sys->b_export_sdp_file )
645 msg_Err( p_stream, "you can use sdp=file:// only once" );
648 p_sys->b_export_sdp_file = true;
649 psz_url = &psz_url[5];
650 if( psz_url[0] == '/' && psz_url[1] == '/' )
652 p_sys->psz_sdp_file = strdup( psz_url );
656 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
661 vlc_UrlClean( &url );
664 /*****************************************************************************
666 *****************************************************************************/
668 char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url )
670 const sout_stream_sys_t *p_sys = p_stream->p_sys;
672 struct sockaddr_storage dst;
676 * When we have a fixed destination (typically when we do multicast),
677 * we need to put the actual port numbers in the SDP.
678 * When there is no fixed destination, we only support RTSP unicast
679 * on-demand setup, so we should rather let the clients decide which ports
681 * When there is both a fixed destination and RTSP unicast, we need to
682 * put port numbers used by the fixed destination, otherwise the SDP would
683 * become totally incorrect for multicast use. It should be noted that
684 * port numbers from SDP with RTSP are only "recommendation" from the
685 * server to the clients (per RFC2326), so only broken clients will fail
686 * to handle this properly. There is no solution but to use two differents
687 * output chain with two different RTSP URLs if you need to handle this
692 if( p_sys->psz_destination != NULL )
696 /* Oh boy, this is really ugly! (+ race condition on lock_es) */
697 dstlen = sizeof( dst );
698 if( p_sys->es[0]->listen_fd != NULL )
699 getsockname( p_sys->es[0]->listen_fd[0],
700 (struct sockaddr *)&dst, &dstlen );
702 getpeername( p_sys->es[0]->sinkv[0].rtp_fd,
703 (struct sockaddr *)&dst, &dstlen );
709 /* Dummy destination address for RTSP */
710 memset (&dst, 0, sizeof( struct sockaddr_in ) );
711 dst.ss_family = AF_INET;
715 dstlen = sizeof( struct sockaddr_in );
718 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_stream ), SOUT_CFG_PREFIX,
719 NULL, 0, (struct sockaddr *)&dst, dstlen );
720 if( psz_sdp == NULL )
723 /* TODO: a=source-filter */
724 if( p_sys->rtcp_mux )
725 sdp_AddAttribute( &psz_sdp, "rtcp-mux", NULL );
727 if( rtsp_url != NULL )
728 sdp_AddAttribute ( &psz_sdp, "control", "%s", rtsp_url );
730 /* FIXME: locking?! */
731 for( i = 0; i < p_sys->i_es; i++ )
733 sout_stream_id_t *id = p_sys->es[i];
734 const char *mime_major; /* major MIME type */
735 const char *proto = "RTP/AVP"; /* protocol */
740 mime_major = "video";
743 mime_major = "audio";
752 if( rtsp_url == NULL )
754 switch( p_sys->proto )
759 proto = "TCP/RTP/AVP";
762 proto = "DCCP/RTP/AVP";
764 case IPPROTO_UDPLITE:
769 sdp_AddMedia( &psz_sdp, mime_major, proto, inclport * id->i_port,
770 id->i_payload_type, false, id->i_bitrate,
771 id->psz_enc, id->i_clock_rate, id->i_channels,
774 if( rtsp_url != NULL )
776 assert( strlen( rtsp_url ) > 0 );
777 bool addslash = ( rtsp_url[strlen( rtsp_url ) - 1] != '/' );
778 sdp_AddAttribute ( &psz_sdp, "control",
779 addslash ? "%s/trackID=%u" : "%strackID=%u",
784 if( id->listen_fd != NULL )
785 sdp_AddAttribute( &psz_sdp, "setup", "passive" );
786 if( p_sys->proto == IPPROTO_DCCP )
787 sdp_AddAttribute( &psz_sdp, "dccp-service-code",
788 "SC:RTP%c", toupper( mime_major[0] ) );
795 /*****************************************************************************
797 *****************************************************************************/
799 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
801 static const char hex[16] = "0123456789abcdef";
804 for( i = 0; i < i_data; i++ )
806 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
807 s[2*i+1] = hex[(p_data[i] )&0xf];
813 /** Add an ES as a new RTP stream */
814 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
816 /* NOTE: As a special case, if we use a non-RTP
817 * mux (TS/PS), then p_fmt is NULL. */
818 sout_stream_sys_t *p_sys = p_stream->p_sys;
819 sout_stream_id_t *id;
820 int i_port, cscov = -1;
823 id = vlc_object_create( p_stream, sizeof( sout_stream_id_t ) );
826 vlc_object_attach( id, p_stream );
828 /* Choose the port */
833 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
835 i_port = p_sys->i_port_audio;
836 p_sys->i_port_audio = 0;
839 if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
841 i_port = p_sys->i_port_video;
842 p_sys->i_port_video = 0;
847 if( p_sys->i_port != p_sys->i_port_audio
848 && p_sys->i_port != p_sys->i_port_video )
850 i_port = p_sys->i_port;
857 id->p_stream = p_stream;
859 id->i_sequence = rand()&0xffff;
860 id->i_payload_type = p_sys->i_payload_type;
861 id->ssrc[0] = rand()&0xff;
862 id->ssrc[1] = rand()&0xff;
863 id->ssrc[2] = rand()&0xff;
864 id->ssrc[3] = rand()&0xff;
868 id->i_clock_rate = 90000; /* most common case for video */
873 id->i_cat = p_fmt->i_cat;
874 if( p_fmt->i_cat == AUDIO_ES )
876 id->i_clock_rate = p_fmt->audio.i_rate;
877 id->i_channels = p_fmt->audio.i_channels;
879 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
883 id->i_cat = VIDEO_ES;
887 id->pf_packetize = NULL;
888 id->i_mtu = config_GetInt( p_stream, "mtu" );
889 if( id->i_mtu <= 12 + 16 )
890 id->i_mtu = 576 - 20 - 8; /* pessimistic */
892 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
894 vlc_mutex_init( &id->lock_sink );
899 id->listen_fd = NULL;
902 (int64_t)1000 * var_GetInteger( p_stream, SOUT_CFG_PREFIX "caching");
904 if( p_sys->psz_destination != NULL )
905 switch( p_sys->proto )
912 case VIDEO_ES: code = "RTPV"; break;
913 case AUDIO_ES: code = "RTPARTPV"; break;
914 case SPU_ES: code = "RTPTRPTV"; break;
915 default: code = "RTPORTPV"; break;
917 var_SetString (p_stream, "dccp-service", code);
920 id->listen_fd = net_Listen( VLC_OBJECT(p_stream),
921 p_sys->psz_destination, i_port,
923 if( id->listen_fd == NULL )
925 msg_Err( p_stream, "passive COMEDIA RTP socket failed" );
932 int ttl = (p_sys->i_ttl > 0) ? p_sys->i_ttl : -1;
933 int fd = net_ConnectDgram( p_stream, p_sys->psz_destination,
934 i_port, ttl, p_sys->proto );
937 msg_Err( p_stream, "cannot create RTP socket" );
940 rtp_add_sink( id, fd, p_sys->rtcp_mux );
946 char *psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
948 if( psz == NULL ) /* Uho! */
951 if( strncmp( psz, "ts", 2 ) == 0 )
953 id->i_payload_type = 33;
954 id->psz_enc = "MP2T";
958 id->psz_enc = "MP2P";
962 switch( p_fmt->i_codec )
964 case VLC_FOURCC( 'u', 'l', 'a', 'w' ):
965 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 8000 )
966 id->i_payload_type = 0;
967 id->psz_enc = "PCMU";
968 id->pf_packetize = rtp_packetize_l8;
970 case VLC_FOURCC( 'a', 'l', 'a', 'w' ):
971 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 8000 )
972 id->i_payload_type = 8;
973 id->psz_enc = "PCMA";
974 id->pf_packetize = rtp_packetize_l8;
976 case VLC_FOURCC( 's', '1', '6', 'b' ):
977 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
979 id->i_payload_type = 11;
981 else if( p_fmt->audio.i_channels == 2 &&
982 p_fmt->audio.i_rate == 44100 )
984 id->i_payload_type = 10;
987 id->pf_packetize = rtp_packetize_l16;
989 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
991 id->pf_packetize = rtp_packetize_l8;
993 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
994 case VLC_FOURCC( 'm', 'p', '3', ' ' ):
995 id->i_payload_type = 14;
997 id->pf_packetize = rtp_packetize_mpa;
999 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
1000 id->i_payload_type = 32;
1001 id->psz_enc = "MPV";
1002 id->pf_packetize = rtp_packetize_mpv;
1004 case VLC_FOURCC( 'a', '5', '2', ' ' ):
1005 id->psz_enc = "ac3";
1006 id->pf_packetize = rtp_packetize_ac3;
1008 case VLC_FOURCC( 'H', '2', '6', '3' ):
1009 id->psz_enc = "H263-1998";
1010 id->pf_packetize = rtp_packetize_h263;
1012 case VLC_FOURCC( 'h', '2', '6', '4' ):
1013 id->psz_enc = "H264";
1014 id->pf_packetize = rtp_packetize_h264;
1015 id->psz_fmtp = NULL;
1017 if( p_fmt->i_extra > 0 )
1019 uint8_t *p_buffer = p_fmt->p_extra;
1020 int i_buffer = p_fmt->i_extra;
1021 char *p_64_sps = NULL;
1022 char *p_64_pps = NULL;
1025 while( i_buffer > 4 &&
1026 p_buffer[0] == 0 && p_buffer[1] == 0 &&
1027 p_buffer[2] == 0 && p_buffer[3] == 1 )
1029 const int i_nal_type = p_buffer[4]&0x1f;
1033 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
1036 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
1038 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
1040 /* we found another startcode */
1045 if( i_nal_type == 7 )
1047 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1048 sprintf_hexa( hexa, &p_buffer[5], 3 );
1050 else if( i_nal_type == 8 )
1052 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1058 if( p_64_sps && p_64_pps &&
1059 ( asprintf( &id->psz_fmtp,
1060 "packetization-mode=1;profile-level-id=%s;"
1061 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
1062 p_64_pps ) == -1 ) )
1063 id->psz_fmtp = NULL;
1068 id->psz_fmtp = strdup( "packetization-mode=1" );
1071 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1073 char hexa[2*p_fmt->i_extra +1];
1075 id->psz_enc = "MP4V-ES";
1076 id->pf_packetize = rtp_packetize_split;
1077 if( p_fmt->i_extra > 0 )
1079 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1080 if( asprintf( &id->psz_fmtp,
1081 "profile-level-id=3; config=%s;", hexa ) == -1 )
1082 id->psz_fmtp = NULL;
1086 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1090 char hexa[2*p_fmt->i_extra +1];
1092 id->psz_enc = "mpeg4-generic";
1093 id->pf_packetize = rtp_packetize_mp4a;
1094 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1095 if( asprintf( &id->psz_fmtp,
1096 "streamtype=5; profile-level-id=15; "
1097 "mode=AAC-hbr; config=%s; SizeLength=13; "
1098 "IndexLength=3; IndexDeltaLength=3; Profile=1;",
1100 id->psz_fmtp = NULL;
1106 unsigned char config[6];
1107 unsigned int aacsrates[15] = {
1108 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1109 16000, 12000, 11025, 8000, 7350, 0, 0 };
1111 for( i = 0; i < 15; i++ )
1112 if( p_fmt->audio.i_rate == aacsrates[i] )
1118 config[3]=p_fmt->audio.i_channels<<4;
1122 id->psz_enc = "MP4A-LATM";
1123 id->pf_packetize = rtp_packetize_mp4a_latm;
1124 sprintf_hexa( hexa, config, 6 );
1125 if( asprintf( &id->psz_fmtp, "profile-level-id=15; "
1126 "object=2; cpresent=0; config=%s", hexa ) == -1 )
1127 id->psz_fmtp = NULL;
1131 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1132 id->psz_enc = "AMR";
1133 id->psz_fmtp = strdup( "octet-align=1" );
1134 id->pf_packetize = rtp_packetize_amr;
1136 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1137 id->psz_enc = "AMR-WB";
1138 id->psz_fmtp = strdup( "octet-align=1" );
1139 id->pf_packetize = rtp_packetize_amr;
1141 case VLC_FOURCC( 's', 'p', 'x', ' ' ):
1142 id->i_payload_type = p_sys->i_payload_type++;
1143 id->psz_enc = "SPEEX";
1144 id->pf_packetize = rtp_packetize_spx;
1146 case VLC_FOURCC( 't', '1', '4', '0' ):
1147 id->psz_enc = "t140" ;
1148 id->i_clock_rate = 1000;
1149 id->pf_packetize = rtp_packetize_t140;
1153 msg_Err( p_stream, "cannot add this stream (unsupported "
1154 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1159 cscov += 8 /* UDP */ + 12 /* RTP */;
1161 net_SetCSCov( id->sinkv[0].rtp_fd, cscov, -1 );
1163 if( id->i_payload_type == p_sys->i_payload_type )
1164 p_sys->i_payload_type++;
1166 if( p_sys->rtsp != NULL )
1167 id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es,
1168 GetDWBE( id->ssrc ),
1169 p_sys->psz_destination,
1170 p_sys->i_ttl, id->i_port, id->i_port + 1 );
1172 id->p_fifo = block_FifoNew();
1173 if( vlc_thread_create( id, "RTP send thread", ThreadSend,
1174 VLC_THREAD_PRIORITY_HIGHEST, false ) )
1177 /* Update p_sys context */
1178 vlc_mutex_lock( &p_sys->lock_es );
1179 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1180 vlc_mutex_unlock( &p_sys->lock_es );
1182 psz_sdp = SDPGenerate( p_stream, NULL );
1184 vlc_mutex_lock( &p_sys->lock_sdp );
1185 free( p_sys->psz_sdp );
1186 p_sys->psz_sdp = psz_sdp;
1187 vlc_mutex_unlock( &p_sys->lock_sdp );
1189 msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp );
1191 /* Update SDP (sap/file) */
1192 if( p_sys->b_export_sap ) SapSetup( p_stream );
1193 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1198 Del( p_stream, id );
1202 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1204 sout_stream_sys_t *p_sys = p_stream->p_sys;
1206 if( id->p_fifo != NULL )
1208 vlc_object_kill( id );
1209 block_FifoWake( id->p_fifo );
1210 vlc_thread_join( id );
1211 block_FifoRelease( id->p_fifo );
1214 vlc_mutex_lock( &p_sys->lock_es );
1215 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1216 vlc_mutex_unlock( &p_sys->lock_es );
1219 if( id->i_port == var_GetInteger( p_stream, "port-audio" ) )
1220 p_sys->i_port_audio = id->i_port;
1221 if( id->i_port == var_GetInteger( p_stream, "port-video" ) )
1222 p_sys->i_port_video = id->i_port;
1224 free( id->psz_fmtp );
1227 RtspDelId( p_sys->rtsp, id->rtsp_id );
1229 rtp_del_sink( id, id->sinkv[0].rtp_fd ); /* sink for explicit dst= */
1230 if( id->listen_fd != NULL )
1231 net_ListenClose( id->listen_fd );
1233 vlc_mutex_destroy( &id->lock_sink );
1235 /* Update SDP (sap/file) */
1236 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1237 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1239 vlc_object_detach( id );
1240 vlc_object_release( id );
1244 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1249 assert( p_stream->p_sys->p_mux == NULL );
1251 while( p_buffer != NULL )
1253 p_next = p_buffer->p_next;
1254 if( id->pf_packetize( p_stream, id, p_buffer ) )
1257 block_Release( p_buffer );
1263 /****************************************************************************
1265 ****************************************************************************/
1266 static int SapSetup( sout_stream_t *p_stream )
1268 sout_stream_sys_t *p_sys = p_stream->p_sys;
1269 sout_instance_t *p_sout = p_stream->p_sout;
1271 /* Remove the previous session */
1272 if( p_sys->p_session != NULL)
1274 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1275 p_sys->p_session = NULL;
1278 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1280 announce_method_t *p_method = sout_SAPMethod();
1281 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout,
1283 p_sys->psz_destination,
1285 sout_MethodRelease( p_method );
1291 /****************************************************************************
1293 ****************************************************************************/
1294 static int FileSetup( sout_stream_t *p_stream )
1296 sout_stream_sys_t *p_sys = p_stream->p_sys;
1299 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1301 msg_Err( p_stream, "cannot open file '%s' (%m)",
1302 p_sys->psz_sdp_file );
1303 return VLC_EGENERIC;
1306 fputs( p_sys->psz_sdp, f );
1312 /****************************************************************************
1314 ****************************************************************************/
1315 static int HttpCallback( httpd_file_sys_t *p_args,
1316 httpd_file_t *, uint8_t *p_request,
1317 uint8_t **pp_data, int *pi_data );
1319 static int HttpSetup( sout_stream_t *p_stream, const vlc_url_t *url)
1321 sout_stream_sys_t *p_sys = p_stream->p_sys;
1323 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host,
1324 url->i_port > 0 ? url->i_port : 80 );
1325 if( p_sys->p_httpd_host )
1327 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1328 url->psz_path ? url->psz_path : "/",
1331 HttpCallback, (void*)p_sys );
1333 if( p_sys->p_httpd_file == NULL )
1335 return VLC_EGENERIC;
1340 static int HttpCallback( httpd_file_sys_t *p_args,
1341 httpd_file_t *f, uint8_t *p_request,
1342 uint8_t **pp_data, int *pi_data )
1344 VLC_UNUSED(f); VLC_UNUSED(p_request);
1345 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1347 vlc_mutex_lock( &p_sys->lock_sdp );
1348 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1350 *pi_data = strlen( p_sys->psz_sdp );
1351 *pp_data = malloc( *pi_data );
1352 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1359 vlc_mutex_unlock( &p_sys->lock_sdp );
1364 /****************************************************************************
1366 ****************************************************************************/
1367 static void ThreadSend( vlc_object_t *p_this )
1369 sout_stream_id_t *id = (sout_stream_id_t *)p_this;
1370 unsigned i_caching = id->i_caching;
1374 block_t *out = block_FifoGet( id->p_fifo );
1376 continue; /* Forced wakeup */
1378 mtime_t i_date = out->i_dts + i_caching;
1379 ssize_t len = out->i_buffer;
1383 vlc_mutex_lock( &id->lock_sink );
1384 unsigned deadc = 0; /* How many dead sockets? */
1385 int deadv[id->sinkc]; /* Dead sockets list */
1387 for( int i = 0; i < id->sinkc; i++ )
1389 SendRTCP( id->sinkv[i].rtcp, out );
1391 if( send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 ) >= 0 )
1393 /* Retry sending to root out soft-errors */
1394 if( send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 ) >= 0 )
1397 deadv[deadc++] = id->sinkv[i].rtp_fd;
1399 vlc_mutex_unlock( &id->lock_sink );
1400 block_Release( out );
1402 for( unsigned i = 0; i < deadc; i++ )
1404 msg_Dbg( id, "removing socket %d", deadv[i] );
1405 rtp_del_sink( id, deadv[i] );
1408 /* Hopefully we won't overflow the SO_MAXCONN accept queue */
1409 while( id->listen_fd != NULL )
1411 int fd = net_Accept( id, id->listen_fd, 0 );
1414 msg_Dbg( id, "adding socket %d", fd );
1415 rtp_add_sink( id, fd, true );
1420 int rtp_add_sink( sout_stream_id_t *id, int fd, bool rtcp_mux )
1422 rtp_sink_t sink = { fd, NULL };
1423 sink.rtcp = OpenRTCP( VLC_OBJECT( id->p_stream ), fd, IPPROTO_UDP,
1425 if( sink.rtcp == NULL )
1426 msg_Err( id, "RTCP failed!" );
1428 vlc_mutex_lock( &id->lock_sink );
1429 INSERT_ELEM( id->sinkv, id->sinkc, id->sinkc, sink );
1430 vlc_mutex_unlock( &id->lock_sink );
1434 void rtp_del_sink( sout_stream_id_t *id, int fd )
1436 rtp_sink_t sink = { fd, NULL };
1438 /* NOTE: must be safe to use if fd is not included */
1439 vlc_mutex_lock( &id->lock_sink );
1440 for( int i = 0; i < id->sinkc; i++ )
1442 if (id->sinkv[i].rtp_fd == fd)
1444 sink = id->sinkv[i];
1445 REMOVE_ELEM( id->sinkv, id->sinkc, i );
1449 vlc_mutex_unlock( &id->lock_sink );
1451 CloseRTCP( sink.rtcp );
1452 net_Close( sink.rtp_fd );
1455 uint16_t rtp_get_seq( const sout_stream_id_t *id )
1457 /* This will return values for the next packet.
1458 * Accounting for caching would not be totally trivial. */
1459 return id->i_sequence;
1462 /* FIXME: this is pretty bad - if we remove and then insert an ES
1463 * the number will get unsynched from inside RTSP */
1464 unsigned rtp_get_num( const sout_stream_id_t *id )
1466 sout_stream_sys_t *p_sys = id->p_stream->p_sys;
1469 vlc_mutex_lock( &p_sys->lock_es );
1470 for( i = 0; i < p_sys->i_es; i++ )
1472 if( id == p_sys->es[i] )
1475 vlc_mutex_unlock( &p_sys->lock_es );
1481 void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1482 int b_marker, int64_t i_pts )
1484 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / INT64_C(1000000);
1486 out->p_buffer[0] = 0x80;
1487 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1488 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1489 out->p_buffer[3] = ( id->i_sequence )&0xff;
1490 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1491 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1492 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1493 out->p_buffer[7] = ( i_timestamp )&0xff;
1495 memcpy( out->p_buffer + 8, id->ssrc, 4 );
1501 void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1503 block_FifoPut( id->p_fifo, out );
1507 * @return configured max RTP payload size (including payload type-specific
1508 * headers, excluding RTP and transport headers)
1510 size_t rtp_mtu (const sout_stream_id_t *id)
1512 return id->i_mtu - 12;
1516 * @return number of audio samples to include for a given packetization time
1517 * (this really only makes sense for audio formats).
1519 size_t rtp_plen (const sout_stream_id_t * id, unsigned ptime_ms)
1521 return id->i_channels * (((id->i_clock_rate - 1) * ptime_ms / 1000) + 1);
1525 /*****************************************************************************
1527 *****************************************************************************/
1529 /** Add an ES to a non-RTP muxed stream */
1530 static sout_stream_id_t *MuxAdd( sout_stream_t *p_stream, es_format_t *p_fmt )
1532 sout_input_t *p_input;
1533 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
1534 assert( p_mux != NULL );
1536 p_input = sout_MuxAddStream( p_mux, p_fmt );
1537 if( p_input == NULL )
1539 msg_Err( p_stream, "cannot add this stream to the muxer" );
1543 return (sout_stream_id_t *)p_input;
1547 static int MuxSend( sout_stream_t *p_stream, sout_stream_id_t *id,
1550 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
1551 assert( p_mux != NULL );
1553 sout_MuxSendBuffer( p_mux, (sout_input_t *)id, p_buffer );
1558 /** Remove an ES from a non-RTP muxed stream */
1559 static int MuxDel( sout_stream_t *p_stream, sout_stream_id_t *id )
1561 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
1562 assert( p_mux != NULL );
1564 sout_MuxDeleteStream( p_mux, (sout_input_t *)id );
1569 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
1570 const block_t *p_buffer )
1572 sout_stream_sys_t *p_sys = p_stream->p_sys;
1573 sout_stream_id_t *id = p_sys->es[0];
1575 int64_t i_dts = p_buffer->i_dts;
1577 uint8_t *p_data = p_buffer->p_buffer;
1578 unsigned int i_data = p_buffer->i_buffer;
1579 unsigned int i_max = id->i_mtu - 12;
1581 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
1585 unsigned int i_size;
1587 /* output complete packet */
1588 if( p_sys->packet &&
1589 p_sys->packet->i_buffer + i_data > i_max )
1591 rtp_packetize_send( id, p_sys->packet );
1592 p_sys->packet = NULL;
1595 if( p_sys->packet == NULL )
1597 /* allocate a new packet */
1598 p_sys->packet = block_New( p_stream, id->i_mtu );
1599 rtp_packetize_common( id, p_sys->packet, 1, i_dts );
1600 p_sys->packet->i_dts = i_dts;
1601 p_sys->packet->i_length = p_buffer->i_length / i_packet;
1602 i_dts += p_sys->packet->i_length;
1605 i_size = __MIN( i_data,
1606 (unsigned)(id->i_mtu - p_sys->packet->i_buffer) );
1608 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
1611 p_sys->packet->i_buffer += i_size;
1620 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
1623 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
1629 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
1631 p_next = p_buffer->p_next;
1632 block_Release( p_buffer );
1640 static sout_access_out_t *GrabberCreate( sout_stream_t *p_stream )
1642 sout_access_out_t *p_grab;
1644 p_grab = vlc_object_create( p_stream->p_sout, sizeof( *p_grab ) );
1645 if( p_grab == NULL )
1648 p_grab->p_module = NULL;
1649 p_grab->p_sout = p_stream->p_sout;
1650 p_grab->psz_access = strdup( "grab" );
1651 p_grab->p_cfg = NULL;
1652 p_grab->psz_path = strdup( "" );
1653 p_grab->p_sys = (sout_access_out_sys_t *)p_stream;
1654 p_grab->pf_seek = NULL;
1655 p_grab->pf_write = AccessOutGrabberWrite;
1656 vlc_object_attach( p_grab, p_stream );